The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 07, 1996
Filed:
Feb. 25, 1994
Anton Pallek, Baden-Baden, DE;
Michael Oberst, Karlsruhe, DE;
Landis & Gyr Business Support A.G., Zug, CH;
Abstract
A control or regulating system for an automatic heat furnace is disclosed. This control system simplifies the construction of automatic gas furnaces for heating plants. The control system operates the furnaces with a high degree of efficiency and low pollutant emission, even at partial capacity. The adjusting element or mechanism for air is a blower with adjustable rotational speed which is driven by a motor. The motor is controllable by, preferably, digital pulse-width modulated control signals of a control aggregate acted upon by a regulator. A gas valve regulates the pressure of the gas supplied to the burner as a function of the air pressure in the line leading from the blower to the burner.